Signal-sending device.



H. O. RUGH.

SIGNAL SENDING DEVICE.

APPLIUATION II-LED NOV. 13, 1909.

Patented June 24, 1913.

usrrisn stares Parana curios.

HA E/RY G. RUG-H, OF SANDWICH; ILLINOIS;

ASSIGNGR, BY MESNE ASSIGNMENTS, TO

THE HELL SWITCH & SIGNAL COETFANY, A COBPORATIQN F MAINE.

sIeNAt-snnnrne nnvrcn.

Qriginal application filed May a,

Specification of Letters Patent. Patented Julie 24 1913. 1909, SerialNo. 493,940. allividied and this application filed November 13,

1909. seria 'no.527,a58.

To all whom it may concern:

13s it known that I, HARRY O. Roan, citizen of the United States,Sandwich, in the county of Dekalb and State of Illinois, have invented acertain new and useful Improvement in Signal- Sending Devices, of whichthe following is afull, clear, concise, "and exact description,reference being bad. to the accompanying drawings, forming a part ofthis specification. p v

This invention relates to signalin systems, and has for its object theprovision of new and improved devices to be used at a central stationfor calling a number of statiogisconnected to the same line wires, whichare preferably of the step-by-step or impulse type.

Inapp'lication, Serial No. 493,940, filed May l, 1909, I have shown acall box showing the general features of the call box of this invention,and also setting forth auxiliary features which are now divided fromsaid application and made the subject-matter of the present application.These instruinentalities comprise auxiliary means inconnection with acall-box arrangement, whereby, after'one station has been called,additional stations can be called Without using said call box, whichauxiliary means enables the operator to signal any number of additionalstations without again using the call box.

I will describe any invention more in detailby reference to theaccompanying drawing, which illustrates the system diagrammatically.

Referring to the drawing, the line circuit over which the impulses areto be sent, is indicated at 1, 2, position of the switching mechanism 3,connects said line wires to a terminal blo cln-al. From this terminalblock, the train despatchers telephone and signal-receiving circuit. isbrought out through the coiiduc- .tors5 and 6, through the interpositionof the condenser '7, which conductor 5, after passing through thesecondary of an 111(1110- residing at .sition of the night bell which,through the inter-' tion coil, connects directly with a spring 2 of aspringjack. Conductor 6,,aswill be seen, connects with spring 9 of saidspring jack. The transmitter 10 and receiver 11 are respectivelyconnected to a plug 12, which is adapted to connect'the same with thesprings 8, 9 and 13, and contact 14, the receiver being connected withsprings 8 and 9, and the transmitter being connected with the spring 13and contact sleeve 14. The

- primary of the induction coil, in series with the battery 15 and acut-in key 16, is c0n- 'nected between the contact sleeve 14 and thespring 13. The secondary 17 is connected the other spring 9 is connecteddirectly to the conductor 6. This establishes the operators localtalking circuit. l

The local signal receiving circuit of the operator consists of the belll8, battery. 19,

relay 21 is connected, through the interposwitch 22, directly bet-weenthe conductors 5 and 6, thus being in bridge of the line wires 1 and 2.A relay 21 is designed to be operated by vibratory currents. Normallyits armature is in circuit with its back contact and therebyclosescircuit through the relay and bat 'tery 19, whereby relay 20 hasits armature disconnected from nected with its back contact. The circuitthrough the bell 18 is thus open. When alternating current from thesubstations comes in over the line wires 1 and 2, it vibrates thearmature of relay 21, thereby opening the circuit through the relay 20and permitting the armature of the relay 20 to connect the bell 18 withthe battery 19. The relay 21 is designed to be operated by vibratorycurrents. Normally its armature is in circuit with its back contact andthereby closes circuit through the relay 20 and battery 19, wherebyrelay QO-has its armature disconnected from its front contact, butconnected with its back contact. The circuit through the bell 18 is thusopen. When alternating current from the substations comes iinoirer itsfront contact, but con.

to the spring 8 and to the conduct-or 5, and

and operating relay 20, and a relay 21, which 7 29, back to theconductor 27.

. thereby permits spring 33 the line wires 1 and 2, it vibrates thearmature of relay 21, thereby opening the circuit through the relay 20and permitting the armature of the relay 20 to connect the bell 18 withthe battery 19.

My improved signal-sending device is adapted to transmit periodicimpulses over the line, corresponding to the number of the station to becalled, and after sending suflicicnt impulses, establishes a circuitcondition, which permits the signal at the substation to operate,whc'reafter, the signal-sending device impresses current on the line torelease the various devices at the substations, all as will be nowexplained.

Impulses are transmitted over the line wires 1 and 2 from the battery23, which battery is connected to two springs 24, 24, which springs arenormally in the contact position as shown in the figure. When the relay25 is actuated to draw up said springs 24, the polarity of the battery,as connected to the line conductorsl and 2, is reversed. This will bemoreparticularly explained later.

Whenever relay 26 is actuated to close circuit through its armature,circuit is closed through the conductor 27, through the line wire 1, bak over the line conductor 28, upper contact spring 24, battery 23, lowercontact spring 24, conductor Thus, for every operation of the relay 26,an impulse is sent over the line wires 1, 2. Now, should the relay 25 beenergized temporarily, while the relay 26 is not energized, the reversebattery polarity is transmitted over line conductors 1 and 2, throughthe agency of conductors 30 and 28. I will now describe how the relays25 and 26 are, operated to send these various impulses.

My contact-making device consists of a wheel 31, operable by means of ahandle 32, and adapted to engage the springs 33 and 34, which arenormally not in contact therewith. 61 which has holes 62 therein, whichholes are adapted to be engaged by a pin 63 car ried by the arm 32 andmanipulated by the button 64 thereof. The holes 62 correspond to thevarious substations to be called and the pin 63 is inserted in the hole62 corresponding to the station desired, whereupon the handle 32 isrotated contra-clockwise until its projection 65 engages a stop'46 forpurposes described hereinafter. After this the manual operation ofthe'device ceases and the spring 66 rotates the element 31 and wheel 61to normal against the stop 67 The projection 65 is of course so arrangedthat it does not interfere, but passes above stop 67. In starting themechanism, the handle 32 is made to engage the wheel 31,, and to rotatein a contra-cloclnvise direction, which to engage a conspring 33 wire 2,through The element 31 is secured to a wheel tact strip 35, which closesa circuit that can be traced from said contact spring 33, the conductor36, conductor 37, relay 25, conductor 38, conductor 39, through thewinding 40, ot' the polar relay 41, to the frame of the relay 41,through conductor 42, bat tery 43, conductor 44, element 31, and element35. This energizes the relay 25, andv sends current of what I'will callnegative. polarity over the conductors 1 and 2, to release the selectivedevices at the substations. At the same time, the coil 40 of the relay41 repels'it's armature 45, so that it is not in contact-makingposit-ion. After the arm 32 has been further swung around, breaks withcontact element 35, and spring 34 begins to engage element 31, but nocontact is established through relay 26 on this account, as circuit isnot closed by armature 45. The further actuation of the arm 32, in acontra-clockwise direction, however, electrically connects it with thecontact element 46, and thereby a circuit is established through thecoil 47 which serves tov attract the armature 45 to close circuit withits contact point 48. The manual actuation of the arm 32 thereuponceases, and the c-lockwork mechanism begins to rotate the element 32 inclockwise direction, during which time spring 34 alternately engagesteeth 49, thereby intermittently actuating relay 26, until the number ofimpulses has been completed, and the spring 34 stays in permanentconnection with the elementBl', which thereby maintains current uponline 109 conductors 1 and 2, by reason of keeping relay 26 actuated,which is designed to op-- crate the substation signal, all as moreclearly explained in my co-pending application, Serial No. 478,088,filed February 105 15, 1 909. r

The circuit through the relay 26 is traced. as follows: contact spring34, relay 26,: conductor 50, armature 45, frame of relay 41, battery 43,conductor 44, to the element 110 31nand its teeth. The actuation ofrelay 26 thereupon sends positive impulses over line wires 1 and 2, aspreviously set forth. The arm 32 can be adjustably set with respect tothe element 31, thus to vary the number of impulses to be transmittedover line Wires 1 and 2, before the contact spring 34 comes into adefinite circuit condition to operate the local substation signal.Before the clockwise rotation of the element- 31 has 1 0 been finallycompleted, the spring 33 again engages contact element 35, which againactuates relay 25, to send a negative impulse overthe conductors 1 and2, to release the substation devices. 125

It is, of course, necessary, as shown, that the negative impulses be notmade coincident with the positive impulses. I provide auxiliaryappliances, so that when one sta tion has been called, and I desire tocall 130 mamas following stations, this may be done without againoperating element 31, and for this reason I have provided a key 51,which is closed with its contact when the element 31 is on its returnstroke, and this short-circuits relay 2 5, and prevents the sending ofthe neg-C lve impulse which would release the local substation steppingdevices. After the element 31 has completed its movement and come-torest, I operate the key 52, which, as will be seen, closes, through theagency of the conductor 53, the same circuit that is ordinarilyestablished by the armature 54, and thereby I send additional positiveimpulses to step-up the devices further, or to maintain a given circuitposition after a number of impulses have been sent, thereby to call thestation desired. I further provide a key 55, which, when depressed,actuates the relay 25, to send a negative impulse, therebyto release anysubstation devicesl It will'be seen that the key 5 1 short circuits theconductors 37 and 38 of the relay 25,

thus to prevent sending of the release impulse. The front contact of thekey 51 is directly connected with conductor 38 and the lever of the keythrough the lever of the switch 55 and its back contact is directly 4connected with the conductor 37. This key 51 thus prevents sending ofthe release impulse. Thereafter key 52 is operated to send additionalimpulses to call one or more than one succeeding stations and thecircuit which accomplishes this is traced from the line conductor 2,line conductor 56, conductor 28,

battery 23, conductor 29, conductor 57 to the lower contact switch 58 ofthe key 52, its associated front contact, the conductor 53, conductor 59to the line wire 1.

To send a release impulse of negative polarity, I use the key 55 anddepressing this key operates therelay 25 to send the release impulse,circuit conditions being as follows: from the upper terminal of relay25, through conductor 37, lever of switch 52, lower; contact spring ofkey 55, front contact of key 55, conductor 60, battery 43, conductor42,'coil 40, conductor 39 conductor 38 to the lower terminal of therelay 25.

It will be seen from this that the auxiliary keys 51, 52 and 55 enableme to selectively call a plurality of stations without again using acall-box arrangement, consisting of the impulse wheel 31 and handle 32.

lVhile I have herein shown and particularly described thepreferredembodiment of my invention, I do not limit 'myselfto theprecise construction and arrangement as herein set forth, but I 1 Havingthus described my invention, what I claim as new and desire to secure byLetters Patent is:' p

1. In a signal sending device for selectively callingia'plurality ofstations, the

combination with a movable member and &

means oontrolledthereby to select either one i means, auxiliaryswitching means for in-.

eluding currents of given electrical character with the line circuit forselecting succeeding stations, auxiliary switching means for includingcurrents of different electrical character with the line circuit forsubstation signal release purposes, and a line circuit to which saiddevices and means are adapted for association. 1

2. In a signal sending device for selectively calling a plurality ofstations, the combination with a movable member and means controlledthereby to select either one of a plurality of substation signalreceiving devices, means for operating said member to send a call for apre-determined station, means controlled by said member whereby torestore said signal receiving devices when said member has completed itssignal sending operation, auxiliary means to tempora-' rily render saidsignal receiving device the restoration thereof upon completion of thecall, auxiliary means to temporarilyrender ineffective the restorationcontrolling means, and auxiliary means to select succeeding stations.

4. In a signal sending device for selectively calling one or more of aplurality of stations, the combination with a call box having meanswhenactuated to select for operation any desired station and to controlthe restoration thereof upon completion of the call, auxiliary means totemporarily render ineffective the restoration controlling means, saidmeans including a circuit controlling switch, and auxiliary means toselect succeeding stations.

5. In a signal sending device for selectively calling one or more of aplurality of stations, the combination with a call box having means whenactuated to select for operation any desired station and to control therestoration thereot upon completion of the call, auxiliary means totemporarily render ineffective the restoration controlling means, andauxiliary means 'to select suc- "ceeding stations, said last aforesaidmeans including electrical switching devices.

6. In a signal sending device for selectively calling one or more of aplurality of having means when actuated to select for means includingelectrical swibe'hiiig tieoperation any desired station and to controlVices. 10 the restoration thereof upon completion of In Witness whereof,I hereunto subscribe the call, auxiliary means to temporarily my namethis 4th day of October, A. D. 1909. rendeg' inefieetive the restorationoontrolling HARRY O. HUGH.

means, said means including a circuit con- Witnesses: trolling switch,and auxiliary means to select MAX W. ZABEL,

succeeding stations, said last aforesaid O. M. VVERMIGH,

